Best Way to Remove/Disable States/Province Field for Specific Countries in Magento 1 and Magento 2
The State/Province field was something that many developers struggled for years in Magento – there are countries that don’t need this feature but it’s set up in Magento that not only this field was required one, but also there was a drop-down with states/provinces/counties that was not correct/needed/actual. Although the information is very important for some countries and used for both tax and shipping calculation, but there are a lot of countries that don’t need this info at all.
In previous Magento versions (up to Magento CE 1.7) there were a lot of different ways to do the task – by editing several js/phtml files in your theme, by using the SQL query TRUNCATE TABLE directory_country_region; or by installing Magento extensions to remove the field (if you don’t have chance to update to 188.8.131.52 for some reason I’d go with this free “Remove/Disable or Change Displayed States and Regions extension” by Eltrino)
In Magento Community Edition 1.7+ Magento developers heeded the requests of users and developers and finally added the functionality to manage State/Province field from the admin area. In other words, if the State/Province is not required for any countries, now you can remove the field entirely or include it as an optional field.
From the Admin panel, go to System > Configuration. Then on the left, under General tab click on General and click on States Option.
There is a list of all countries where you can select the countries where you want the State/Province to be required.
Also there is the second setting ‘Display not required State’. If ‘Yes’ than the State/Province field will be included in all addresses as a not required field; if ‘No’ the field will be removed completely from all addresses in your store (for those countries which are unselected in the list).